Senior System Administrator - FFNN-8807

Senior System Administrator (TS/SCI with Polygraph)Location: Annapolis Junction, Maryland

Innovative System Solutions (ISSI) is seeking a **Senior
System Administrator with an active TS/SCI clearance with polygraph**.
This is an exciting opportunity for candidates seeking meaningful work in a
collaborative, team-oriented environment.

About the Role

The Senior System Administrator will support the
implementation, troubleshooting, and maintenance of Information Technology (IT)
systems. This role is responsible for managing system infrastructure and
ensuring reliable day-to-day operations across client, server, storage, and
network environments.

Key Responsibilities

• Provide

Tier 1 (Help Desk) and Tier 2 (Escalation) support, including problem
identification, diagnosis, and resolution

• Support

escalation processes and communicate status updates to agency management
and internal stakeholders

• Maintain

involvement in dispatch system and hardware issue resolution

• Configure

and manage UNIX and Windows operating systems

• Install,

troubleshoot, and maintain operating system software and network
components

• Implement

system enhancements to improve performance and reliability

• Monitor

daily IT system operations, including servers, storage, networks, and
mobile devices

• Perform

system capacity planning and resource optimization

• Develop

system engineering management and integration/test plans

• Provide

detailed analysis and feedback for escalated issues

• Collaborate

with government personnel, program staff, and senior leadership

• Ensure

technical integrity of systems engineering deliverables

Requirements

​

Qualifications

• Active TS/SCI clearance with polygraph (required)

• Minimum 10 years of experience as a System Administrator in programs of

similar scope and complexity

• Bachelor’s

degree in a technical discipline from an accredited college or university

• Substitutions:

• 5

additional years of SA experience may substitute for a degree

• 5

additional years of Systems Engineering experience may also substitute

• Strong

experience troubleshooting complex IT systems

• Experience

with UNIX and Windows system administration

• Ability

to manage daily IT operations and provide user support

Salary Range 170-175,000

The salary range provided is a general guideline. ISSI
considers several factors when determining compensation, including the role’s
responsibilities, candidate experience, education, skills, and current market
conditions.

Benefits

​

What We Offer

ISSI provides a highly competitive benefits package,
including:

• 401(k)

with matching contributions

• Health,

Dental, and Vision coverage

• Prescription

drug plans

• Employer-funded

Health Savings Account (HSA)

• Mental

health resources

• Life

and AD&D insurance

• Short-Term

and Long-Term Disability coverage

• Business

travel and expense reimbursement

• Employee

referral program with cash bonuses

• Employee

recognition program

• Tuition

and training reimbursement

Who Is ISSI?

ISSI is a growing management and technology consulting firm
specializing in systems and software solutions. Our team is dedicated to
delivering exceptional results for both our clients and employees.

Since our inception, we have focused on developing
innovative solutions that help organizations achieve their goals. We pride
ourselves on collaboration, technical excellence, and staying at the forefront
of emerging technologies.

Equal Opportunity Employer

ISSI is proud to be an Equal Opportunity Employer. All
employment decisions—including hiring, promotion, discipline, and termination, are
based on merit and business needs. We do not discriminate on the basis of race,
color, religion, age, genetic information, or any other protected status under
federal, state, or local law.